Home / 12,879.29-19,327.60-4,559.28

Finding the Fourth Proportional to 12,879.29, 19,327.60 and 4,559.28

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Solution

The fourth proportional to 12,879.29, 19,327.60 and 4,559.28 is: 6,841.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879.29 : 19,327.60 = 4,559.28 : x
  2. Step 2: Convert to fraction form
    12,879.29/19,327.60 = 4,559.28/x
  3. Step 3: Cross multiply
    12,879.29x = 19,327.60 × 4,559.28
  4. Step 4: Simplify right side
    12,879.29x = 88,119,940.13
  5. Step 5: Solve for x
    x = 88,119,940.13/12,879.29
  6. Step 6: Final answer
    x = 6,841.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.